Upgrade operation requirements

Prerequisites

Performing an upgrade operation on an NE requires the fulfillment of certain prerequisites, depending on the NE configuration and management. Before you perform an NE upgrade operation, you must import an NE software image. For NEs managed using MDM, see How do I import an NE software image?. NE software images can be downloaded from the Nokia Support Portal for the NE type and release.

For NEs managed using MDM, the adaptors for the new software version must be present on the NSP; see “How do I install adaptor artifacts that are not supported in the Artifacts view?” in the NSP System Administrator Guide.

The following additional general requirements apply to all upgrades:

An upgrade operation can fail if a workflow task times out, for example fetching upgrade status or validating downloads and CPM synchronization. You may need to customize the upgrade workflow for your network; see the NSP Network Automation Guide for information about modifying workflows.

ISSU upgrade path limitations

Before performing an upgrade operation, consult the NE documentation to confirm that the upgrade you need to perform is supported on that NE. For example, a 7750 NE only supports upgrades to releases one or two major releases later than the current release: from Release 21.x to Release 22.x or 23.x, but not to Release 24.x or later.

NSP classically-managed NEs

You can use the NSP to upgrade NEs managed through NSP Classic mediation. The following requirements apply:

For the multi-phase upgrade operation type nsp-ne-upgrade-with-phases, the following three policies must be configured on the NFM-P with the settings specified below:

Policy name

Required settings

download

download=true, activate=false, reboot=false

activate

download=false, activate=true, reboot=false

reboot

download=false, activate=false, reboot=true (issu=true if issu upgrade triggered)